Railway crossing



Nov. 12, 1929. J. F..Z!MMERMAN RAILWAY CROSSING Fild Nov. l5, 1928- Patented Nov. 12 1929 T f rel cs f Jenn uni Lama osmium-Em, Ic

' 'BAILWAY CROSSING Application filed November 15, 19.28;. Serial NO-319,492;

This invention relates to railway crossings, itmore particularly relating to crossings of the continuous type.

One of the objects of my invention is to provide a crossing of the character referred: to which willbe simple in construction and effective in operation.

A further object of the invention is to pro;

vide a crossing of the continuous type'in which bars are employed to close the breaks or spaces between the crossing rails which bars are movable longitudinally of the tracks, in connection with improved means for op-. crating-the bars.

A further object of the invention is to pro-.

vide an arrangement by which the bars which close the spaces orbreaks, in the crossing rails are shifted automaticallyby a train ap= preaching the crossing.

apparent from the accompanying description-and claims. a

In the accompanying drawings 2 Fig. 1 is a top plan View of a crossing ein 6 bedyingmy improvements. I

Fig. 2 is an enlarged sectional View 011 the line 22 of Fig. 1. V

Fig. 3 is an enlarged sectional view similar to Fig. 2-but Withthe parts in a different."

working position. v

Fig. 4 is an enlarged sectional view on the line 44 of Fig. 2.

Fig. 5 is an enlarged sectional view on the" line 5-5 of Fig. 2. I

Fig. 6, is an enlarged sectional view on the line (r-6 of Fig.1.

Fig. 7 is an enlarged sectional view on the line '77 of Fig. 2.

Referring to the drawings, B represents the railsof one track and R the rails of the other track. Secured to the ties T in spacedapart relation to the inner sides of and longitudinal alignment with the respective rails are L-shaped supports 1 of substantiallythe same height as the rails. Journalled upon a stud 2 projectingfrom each support 1 is a roller 3 which forms a support for the inner end of a bar 44, which is located between the support and corresponding track rail and is or a width substantiallyequal to the ind e positionshOwn in. Fig. 2 to close the Furtherobjects of the invention will be Each oi the arms 1:3. is connected with the ner end if cf the. ar Ho e a b o k which is adapted n c cs h bre kerspace between dlac nt rack ra ls and is. supported eithe 1 r ak chm the imperative-position shcwn- I V in Fig. 3. The u der ide cf eac h r 1s.-

prc idcdw th. a cam surfac 4; hich seenates wi h the r ller ate raise cwcr t e a t cpcra ive inope ati e pcsit cn- 6b 1 The. u er end i cachhar his fcrmcd n incline asind cetcd at 4!" and rests uncncnc rm 5 f a hel crank; l ver wh h s riveted.

on the stud 6 which prcjccts ire-m thcsiinncrt The ether Toithis bell cr nk leve 65; is pivotally' connected by a link 8l'withja er 9 whi h in turn isni ctal lycpnncc cd ith an. car .10 on. the under ide. cf the sunk pertv and a so pi ct lly connected ugh t e m dium of a li k 11 With hc ha 70.; 4 adjacent the nn r and thc cf- The clined su faces of each of said hers, when i he cpcreti cpositicn ow Fig. 2% s and in-the path of the flanges f the Wheel f an approac ing tra n s tha wh n the flanges strike the incl ned p rti ns cf the ars the. bars a e wi hd awn f mthc ope a: tive osition shown in 2 o the posi ion "shown in Fig. "3 through the medium otthe onn ions described- ]At the sam time,' so}, through connections to-be de cribed, the other pair of bars of the same trackon the. opposite side of the, crossing are likewise withdrawn and the *four bars of'the other. track projected into operative position SQ as to close the breaks or spaces between the'rails of the track occupied by the, approaching; train. r

In order to'cause all of the bars to. he-si= multaneously operated in this manner, each. bar is connected to. the other ba'r in the ,iol- 1 lowing manner: There is providedat each outer corner of the intersection alever meinber consisting of three arms13, 14 and 1.5,

19 corresponding bar 4 associated with one and each .of the arms 14 is connected with-the corresponding bar 4. associated with theother track. Each connection is a made through the medium of a'li-nk 12, one end of 10.9.

V hers is operated the other members will be simultaneously operated and to that end there is provided four links 17, one end of each link being connected with an arm of the corresponding lever member and the other end connected withan arm 13 or 14 of another lever member.

' spaced-apart relation with. the inner side thereof, the inner end of said bar forming The operation is as ffollows: Assuming that a train is approaching on the track rails R, the flanges of the wheels riding on the in- .clined portions 4! of one pair of the bars 4 depresses the outer ends of those bars and rocks the arms 5 and 7 of the bell crank levers awhich' through the links 8 swing thelevers 9 which act through links 11 to withdraw that pair of bars 4, which bars then drop to the position shown in Fig. 3. At the same time ,by reason ofthe connection of the levers 9 .withthearms 14:, all of the lever members are swung so as to retract the other pair of bars 4 associated with thetrack rail'R and project the ends 4: of the two pairs of bars 4 which I are associated withthe railsR. vi

Having thus described my invention, I claimz'f -1. Ina railway crossing, a bar associated with each rail in longitudinal alignment and a blockto close the space between rails, the outer end of said bar standing in the path of the flanges of the wheels of a'track vehicle so as to-be depressed thereby, means for sup- "porting said bar in operative position, and

means operated by the depression of said bar andconnected therewith for withdrawing, v

' with each rall 1n. long tud nal alignment and said bar from operative position;

2. In a railway crossing, a bar assoclated .with each rail iii-longitudinal alignment and spaced-apart relation with: the inner ;side thereof, a support for the-inner end of said bar including a cam surface on said bar coopcrating with said support to raise and lower the bar, the inner end of said bar forming a block toclose the spacebetween the rails, the outer'end of said bar standing in the path ofthe flange of a wheel of a track vehicle" so as-to be depressed thereby, and means op erated by the depression of said bar and con- 7 L nected therewith for withdrawing said bar from operative position; 7

3. In a railway crossing, a-bar associatedwitheach rail in longitudinal alignment and spaced-apart relation with the inner side thereof, the inner end of said bar forming a block to'close the spacevbetween rails, the

outer end of said bar standing in the path of the flanges of the wheels of a track vehicle "soas to be depressed thereby, means for sup- 7 intersection, the'arms of which porting said bar in operative position, means operated by the depression'of said bar and connected therewith for withdrawing said bar from operative position, and means connecting the bars whereby the withdrawal of the bars of one track moves thebars of the spaced-apart relation with the inner side thereofl'a support for the inner end of said bar including a cam surface on said bar cooperatmg with sald support to ralse and lower 1 the bar, the inner end or said barvforming a blockto close the space between the rails, the outer end of said bar standingin the path of the flange of a wheel of a track vehicle so as to be depressed thereby, means operated by the depression of said bar and connected therewith for withdrawing said bar from'operative position, and means connecting the bars whereby the withdrawal of thebars olt' one track moves the bars of the other track to operative position.

5. In a railway crossing,abar;associatedv with each rail in longitudinal alignment and spaced-apart relation ,withtheinner side .thereof,the inner end ofsaid' bar forming a block to close the space betweenthe; rails, a

supportforsaid bar near the inner end-there-' of,'said bar having an inclined surface sup- 7 ported by said support whereby thelongitudinal movement oft-said bar will raise or v H lower the same, means operated by an approaching vehicle on one track for moving thebars associated with that track in a dil rection to permit the depressionoiftheinnen ends thereof, and meansconnecting therespective bars whereby thebars of the; other track will be moved longitudinally and raised to operative position.

6. In a railway crossing, Ya bar associated spaced-apart relation with the. inner-side thereof, the inner end of said bar forming a block to closethe space between the rails,

a support for'said-bar nearthe inner end thereof, said bar having a beveledsurface cooperating by said support whereby end-wise movement of said bar will raise or lower the same, means operated by an approaching vehicle on. one trackfor moving the bars associated with that track in a direction to permit the depression of the innerends thereof, and

means connecting the respective bars whereby the bars-of the other track will'be raised and moved: longitudinally to operative position, a 1

said means consisting of a plurality of lever 'Z. In a railway crossing in which tracks.

cross one another at an angle, tread members for the breaks in the rails of at least one track adjacent the points of intersection with the other track, said tread members being movable upwardly and downwardly with relation to the rails of the track with which they are associated, and means operated by relation to the rails of the track with which a they are associated, and means to, lower said tread members to allow them to clear the wheels of a vehicle approaching on the other track, and means for thereafter raising said tread members.

In testimony whereof, I have hereunto set w my hand this 9th day of November, 1928.

JOHN F. ZIMMERMAN. 

